Tractor plowing attachment



April 13,1926.

M. C. ZAVITZ TRACTOR PLOWING ATTACHMENT Filed May 18 I 1925 Wine s Patented Apr. 13, 1926.

MORLEY c'rrnsrnn zavr raor irnvrnsron, onrenro, can-Ana.

TRACTOR ELOLWING A'ITAQHMENT.

Application filed Iviaylfi, 1925. Serial No. 31,004.

TocZZ whom it may concern: v

Be it knownthat-I, .Monnnr Oi-nisrnn ZA/ vrrz, of the village of tlvinsto'n, in the county of ,Lainbton and Province of Ontario, Canada, have. invented certain' new' and useful Improvements in Tractor -.Plowing Attachments,of which the following is a full, clear, and exact description.

The object'of'my'invention is to produce a plowing attachn'ient in connection "with tractors, capable of easily movingtheplows sideways vso as i to straighten the furrows without altering the course' of or stopping thej'tra'ctor. i

'A further object of my invention is tool taina wide range of action forthe machine and to cause the same to be 'rigid'when not in use.

A still further object of my invention is to construct a machine of simple form, where all the parts are readily accessible either for repairs or inspection.

In the accompanying drawings, similar reference symbols refer to similar parts throughout the several views.

Figure 1 is a front elevation of my attachment as it appears when detached from a tractor.

Figure 2 is a. vertical section on line 2-2, Figure 1.

Figure 3 is a horizontal section on line 33, Figure 2.

My attachment comprises a plate I carrying at each end guide members 2, each consisting of a metal bar-bent upon itself so as to leave an opening 3 of sufficient width between its parallel sides to form a guideway, for a purpose hereinafter described. The open end of said opening is positioned over the end of plate 1 so as to straddle the same and is there bolted as at 1. The guide memher 2 has its lower side end bent at right angle to form an ear 5 having a perforation 6 to allow the attachment to be bolted to the tractor frame 7 by means of a bolt 8.

In the openings 3 of the guide members 2, I mount a metal bar 9 having its ends bent upwards to form uprights 10 and 11, each carrying a hook 12 bolted therethrough. It will be noticed that the hook 12 on upright 10 is higher from the bar 9 than the hook 12 on upright 11 a distance sufficient to permitthe two ends of a chain coiled around a post hereinafter described to remain horizontal when hooked thereto.

In order to take up the friction of the bar Qfrom the sides of openings 3, I mount; friction wheels 13 against which jther ba r travels. i

.To lOClQbflI' S) in anypositi'om I provide alongits faceperforations 1 1' 'so positioned as to coincide with 'aiperforationlo iii one of'the guide members 2,"which member c a'r fries a locking bolt' 17' consisting of aimemiber lia'Vi-ngjone enufl bentlto enter perforation 15, "an'd'its' opposite end bentto form a foot pedal :18. Member 16 is fulcruined atl19in a lugf'2Q on guidefplate 2. 'A" spfring" 2'1' is mounted tofnormally' keep bo1t117 o'f mem-ber 16 in perforation 15. fBarQhas a 'p'erfor tion 22 positioned centrally thereof where the draw-tarot the fplo'w may be connii'ectetl.

' 'To"obt ain the sid'ewise movement offloar 9,'I providea post "23 mounted vertically on base plate 1. In the present showing, the mounting comprises a plate 24 offset at 25 so as to form an opening 26. The offset portion 25 is perforated to allow post 23 to rotate therein. A pin 27 passes through post 23 to keep the same in position. Plate 21 is attached to plate 1 by means of bolts passing through said plates and through a part of the tractor, serving the double purpose of holding plate 241 in position and the attachment on the tractor. This attachment, together with the ears 5 form a rigid connection to the tractor. I brace the upper end of post 23,first on one side by a double brace 28 fastened to guide members 2, the same having a collar 29 around the post as shown, and second, on the other side by a bar 30 also having a collar 31 around the post.

The other end of bar 3O is fastened to any suitable place on the tractor. Over the braces aforementioned, I fix on post 23 an operating wheel 32 to rotate said post. On post 23 between the hooks 12 on uprights 10 and 11, I wind a few turns of a chain 33 and extend the ends to the hooks 12. One of the links of said chainis fastened to post by a bolt 34. v

In operation, the attachment having been securely fastened to the tractor as previously explained, the plow beam is connected to the bar 9 at 22. The adjusting wheel 32 is positioned on the tractor near the seat of the operator and whenl it is desired to shift bar 9, he presses on pedal 18, which will remove bolt l'l' from the perforations in the bar and allow the free movement of bar 9 whenever post 23 is rotated. This movement is obtained by the chain 33 winding on post 23 when wheel 32 is turned. The

shifting of bar 9 will cause the plow to move either way and thus the furrows may be straightened without stopping the tractor.

The attachment shown is one selected among many types working on the same principle. It should be understood that the following claims are not limited solely to the present showing but nay vary within a reasonable scope.

What I claim as my invention and desire to secure by Letters Patent is 1. In a tractor attachment of the class de scribed, a base plate, guideways mounted one at each end of said base plate, a bar mounted to move longitudinally in said guideways, antifriction means in said guideways upon whch said bar moves, integral standards mounted one at each end of said bar, hooks in said standards, a post mounted at right angles to said base plate centrally thereof, means on said base plate to form a bearing for said post, means to brace said post at its upper end, hand-operated means to turn said post, a chain wound around said post having its ends connected to the hooks of the standards aforesaid, and bolts passing through said plates to connect said attachment to the tractor.

2. In a tractor attachment of the class described, a base plae, guideways mounted one at each end of said base plate, a bar mounted to move longitudinally in said guideways, antifriction means in said guideways upon which said bar moves, integral standards mounted one at each end of said bar, hooks in said standards, a post mount ed at right angles to said base plate centrally thereof, means on said base plate to form a bearing for said post, means to brace said post at its upper end, hand-operated means to turn said post, a chain wound around said post having its ends connected to the hooks of the standards aforesaid, means to attach said attachment to a tractor comprising bolts passing through the base plate and ears integral with the guideways.

In testimony whereof, I have hereunto affixed my signature, this 6th day of August, 1924.

MORLEY CHESTER ZAVITZ. 

